speedo

  1. G

    Speedoo and brake light issue.

    Hey guys! Time to make my first post here! I have some electrical issues with my 97 6.5 nv4500. Main thing is speedo will bounce around and come down to zero after say ten to 15 minutes of driving, when cold. Going home from work in the afternoon it will start to act up after maybe 5-10 tops. If...
  2. Jonnyc1500

    Vss gear ?

    Hey guys, so since I’ve upgraded to 265/75 16x8 from the OEM 235/75 15x7 ( truck was 100% original when bought and had been sitting for 4 years) My speedo has been reading about 5-6 mph slower than what my gps says I’m going ( aka dash says 60 / gps says 65) , it came with the 3.42 rear, what...
  3. H

    Speedometer is erratic, especially in the cold

    I have a 1994 Extended Cab Silverado that I recently replaced the gauges in with AutoMeter gauges. All other gauges work perfectly, except for the speedometer. It is extremely crazy in the cold, even moving while in park, if I press the throttle. When the day gets warmer, while going around...
  4. R

    Wiring harness interchangeable?

    Hello all, new to forum, I have an 89 Scottsdale, (single cab 2wd) that I picked up for free. It had a dash fire from an improperly installed breathalyzer. My question is: what wiring harness can I use? Can I use harness from a 2500? Can it be from a higher trim and not use the connectors...

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